William Santana Li founded Knightscope after what happened at Sandy Hook. "You are never going to have an armed officer in every school," he said to the New York Times.

This is the K5 promo video:

K5 is equipped with the following features:

GPS locator

LIDAR 3D mapping

360 degree HD video

Thermal imaging camera

Optical behavioral analysis

Audio recording

Biological, chemical, and radiation detection

Proximity sensors

The device, which is still in the developmental stages, will also have a limited amount of autonomy, including the ability to follow a preplanned route. Eventually, it will be wirelessly connected to a centralized data server, making it possible for K5 to recognize faces, license plates and other suspicious anomalies.

But what is for some a technology-laden route to safer communities and schools is to others an entry point to a post-Orwellian, post-privacy world.

"This is like R2D2's evil twin," said Marc Rotenberg, the director of the Electronic Privacy and Information Center, a privacy rights group based in Washington.

And the addition of such a machine to the labor market could force David Autor, a Massachusetts Institute of Technology economist, to rethink his theory about how technology wrecks the middle class.

The minimum wage in the United States is $7.25, and $8 in California. Coming in substantially under those costs, Knightscope's robot watchman service raises questions about whether artificial intelligence and robotics technologies are beginning to assault both the top and the bottom of the work force as well.